Multi-divisional antenna

Abstract

Provided, as a multi-divisional antenna, in the present disclosure, is a canister antenna having a plurality of divided antennas arranged so as to have an integrated appearance. The antennas are fixed to an adapter with strong tension by using a connection member such as a wire. The multi-divisional antenna according to the present disclosure is solid, low cost, and convenient with respect to manufacturing, installation, and maintenance.

The invention claimed is: 
     
       1. An antenna system, comprising:
 at least three antennas arranged to form a canister, wherein each of the at least three antennas has a top surface and a bottom surface, and each of the at least three antennas comprises an antenna-side connecting fixer provided on an upper portion of the corresponding one of the at least three antennas; and 
 an adapter coupled to the bottom surface of each of the at least three antennas, wherein the adaptor comprises at least three adapter-side connecting fixers provided on a top surface of the adaptor, 
 wherein the antenna-side connecting fixer of each of the three antennas is connected to one of the at least three adapter-side connecting fixers by a wire, 
 wherein the wire comprises an upper wire and a lower wire, the upper wire including a tension adjuster, 
 and wherein the lower wire branches from the upper wire to at least two strands starting from a node and the at least two strands faces each other and extends downward to be spaced apart from each other. 
 
     
     
       2. The antenna system of  claim 1 , wherein each of the at least three divisional antennas has a hollow space. 
     
     
       3. The antenna system of  claim 1 , wherein the adapter comprises at least three regions each corresponding to one of the at least three antennas, and each of the corresponding regions comprises one of the at least three adapter-side connecting fixers. 
     
     
       4. The antenna system of  claim 3 , wherein an end of the lower wire is connected and fixed to the adapter-side connecting fixer provided on each of corresponding regions of another antenna. 
     
     
       5. The antenna system of  claim 1 , wherein each of the at least three antennas comprises a plurality of projections provided on its bottom surface, and the adaptor comprises a plurality of slots for accommodating the plurality of projections of each of the at least three antennas. 
     
     
       6. The antenna system of  claim 5 , wherein coupling holes for coupling to each of the at least three antennas are formed at the adapter in the vicinity of an outer circumferential end thereof. 
     
     
       7. A set of antennas, comprising:
 a first antenna, a second antenna, and a third antenna, wherein the first, second, and third antennas are arranged to form a canister, wherein each of first, second and third antennas has a top surface and a bottom surface, and each of the first, second and third antennas comprises an antenna-side connecting fixer provided on an upper portion of the corresponding one of the first, second and third antennas; and 
 an adapter configured to be coupled to the bottom surface of each of the first, second, and third antennas, 
 wherein each of the first, second, and third antennas has a hollow space and a antenna-side connection fixer formed therein, 
 wherein the adapter comprises an adapter-side connection fixer on a top surface of the adapter, and 
 each of the antenna-side connection fixers of the first, second and third antennas and the adapter-side connection fixer are connected and fixed by a wire, 
 wherein the wire comprises an upper wire and a lower wire, the upper wire including a tension adjuster, 
 and wherein the lower wire branches from the upper wire to at least two strands starting from a node and the at least two strands faces each other and extends downward to be spaced apart from each other. 
 
     
     
       8. The antennas of  claim 7 , wherein the adapter comprises three regions each corresponding to one of the first, second and third antennas, and an end of the wire is connected and fixed to the adapter-side connection fixer formed in a corresponding region of another antenna. 
     
     
       9. The antenna system of  claim 2 , wherein a plurality of slots for accommodating the connectors of each of the at least three antennas are formed at the adapter. 
     
     
       10. The antenna system of  claim 2 , wherein a plurality of slots for accommodating the connectors of each of the at least three antennas are formed at the adapter. 
     
     
       11. The antenna system of  claim 3 , wherein a plurality of slots for accommodating the connectors of each of the at least three antennas are formed at the adapter. 
     
     
       12. The antenna system of  claim 3 , wherein a plurality of slots for accommodating the connectors of each of the at least three antennas are formed at the adapter. 
     
     
       13. The antennas  claim 8 , wherein the connecting wire is oriented obliquely with respect to the at least one of the three antennas. 
     
     
       14. The antenna system of  claim 1 , wherein the wire is oriented obliquely with respect to the at least three antennas. 
     
     
       15. The antenna system of  claim 1 , wherein the antenna-side connecting fixer of each of the at least three antennas is a projection having a through-hole, and the at least three adapter-side connecting fixers are projections each having a through-hole.